How to view the Network Configuration in AHV

September 7, 2020 at 12:17 pm Leave a comment

Use the following commands to view the configuration of the network elements.

Before you begin

Log on to the Acropolis host with SSH.

Procedure
  • To show interface properties such as link speed and status, log on to the Controller VM, and then list the physical interfaces.

    nutanix@cvm$ manage_ovs show_interfaces

    Output similar to the following is displayed:
name mode link speed 
eth0 1000 True 1000 
eth1 1000 True 1000 
eth2 10000 True 10000 
eth3 10000 True 10000
  • To show the ports and interfaces that are configured as uplinks, log on to the Controller VM, and then list the uplink configuration.

    nutanix@cvm$ manage_ovs –bridge_name bridge show_uplinks

    Replace bridge with the name of the bridge for which you want to view uplink information. Omit the –bridge_name parameter if you want to view uplink information for the default OVS bridge br0.Output similar to the following is displayed:
Bridge: br0
  Bond: br0-up
    bond_mode: active-backup
    interfaces: eth3 eth2 eth1 eth0
    lacp: off
    lacp-fallback: false
    lacp_speed: slow
  • To show the bridges on the host, log on to any Controller VM with SSH and list the bridges:

    nutanix@cvm$ manage_ovs show_bridges

    Output similar to the following is displayed
Bridges:
br0
  • To show the configuration of an OVS bond, log on to the Acropolis host with SSH, and then list the configuration of the bond.

    root@ahv# ovs-appctl bond/show bond_name

    For example, show the configuration of bond0.

    root@ahv# ovs-appctl bond/show bond0

    Output similar to the following is displayed:
---- bond0 ----
bond_mode: active-backup
bond may use recirculation: no, Recirc-ID : -1
bond-hash-basis: 0
updelay: 0 ms
downdelay: 0 ms
lacp_status: off
active slave mac: 0c:c4:7a:48:b2:68(eth0)

slave eth0: enabled
        active slave
        may_enable: true

slave eth1: disabled
        may_enable: false

Entry filed under: Nutanix.

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